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(No Model.)

LeR. S. WHITE.

Maufacture No. 235,834

of Boilers and other Vessels.

. Patented Dec. 21,1880..-

Witnesses ir @autres WATERBURY, connncriou'r, Assienon 'ro BROWN 8L BROTHERS, 0F SAME PLACE.

'NHNUFACTURE OF BOILIEHS AND OTHER WESSELS.

srncrrrcacrrorr forming pere of Lettere recent No. 235,834, dated Deeember e1, leso.

Appneeuen mea october 14, iaao. inemeael.)

10 all whom 'it may concern Be it known that I, LE RoY S. WHITE, of Waterbury, in the county of New Haven and State4 ot Connecticut, have invented certain 5 new and usefullmprovements in the Manufacture of'Boiler's and other Vessels, or" which the following is aspecitication.

vlldypinventionrelates particularly to kitchenthem, andhence great dicultyis often expezo rienced in properly applying the solder' used to makethis joint. 4 y

The object of this-invention is to insure the filling 'ot' su'ch a joint withsolder, and thus enable a .perfectv jointto' be vproduced Without .25 great s'kill or extraordinary care'on the part of the workman.'

To this end the invention consists in so con tractin g the inner end ofthe inner section that after its insertion'into the outer section an annular channel or reservoir is formed within the outer section by'such contraction, and in placing upon said con'tractedend before its insertion into the outer section a ring of solder, and inapplying heat to the exterior of said outer section after the two sections are put togeth'er, to cause said ring ot' solder to melt in said channel or'reservor and run downtherefrom between the twosections, thus forming a :perfect joint. 4 In the accompanying drawings, Figure 1 ,represents a central vertical section of a boiler. embodying my invention, and Fig. 2 representsa similar. section vot' the. joint upon a larger scale, theparts being broken'in a vertical'line to economize space.

- Similarletters of reference designate corresponding parts in both the figures.

The boiler which I'have represented is coniposed of tu o cylindricor tubularsections, A S0 A', lwhich have formed integral with them heads B B byxdrawi'ng up or otherwise shapingdisk-s ofcopperin amanner now well known in the arts. To complete the boiler these two vparts must be united by a joint at about .the middle of the length of the boiler, and this- 5 5 joint'is formed by constructing'the sections so that one may be slipped inside theother, and then uniting the surfaces which are in contact by soldering. Inasm uch, however, as the two heads are made integral with the two sections, 6o it will be understood that when 'the one secriou is slipped inside the other preparatory to soldering', access to the interior ot' the boiler is impossible, and hence it is dificult to properly apply the solder, and great care and Watchfulness are required on the part'of the work-4 t Asif clearly represented, theopen end of the AInner section, A, is considerably contracted or deflected inward at va, and at some'little dis- 7o tance from .the end 1s 'a muchsli'ghter contraction, b, so that when slippedV together an annu lar'reserjvoir or channel, C, for the solder will be formed andthe exteriors of Ithe two sec-4 tions will be nearly infline with each other. Before. the section' A is slipped inside of the section A', I place upon the contracted end a a ring of solder, c, the greatest diameter of which is a little less than the internal diameter of the section A', so that it will easily slip inside the 8o latter. 'Ihe` section'A is now slipped inside the section A', and if heat be applied equally all around the. exterior of the boiler at the joint the solder'willv meltin the channel or reservoir C 'and runV down 'all-.around the joint, asshown 85 by black` lines b'. in Fig. l, and when it appears at the lower edge of the-outer section, A', it will besuiicientevidence that the joint is properly and uniformly filled with solder. The heat maybe applied to the Aboiler byinserting the 9o boiler within a ringof gasaburners.

In order to increase-the strength ot' the joint and also to enhance the appearance ot the boiler, I place outside the-boiler, opposite the joint, a ring or band, C', which overlaps the 95 end ofthe outer section, Al.

In order to solder the inner surface of the ring or band C' to the surfaces bof the sections A A', which are in contact therewith, I ern. ploy a divided ring or band, D, (represented Ico in v dotted outline in Fig. 2,) which muy be clamped upon the boiler,` and is made flaringr at the top, so as to -form an annular well or reservoir, in which sand is placed to cover the, edge ofthe outer section, A'. The melted solder, being prevented by the sandfrom escaping et the bottom edge of the section A', isca'nsed to tlow upward between the outer section, A', and, the interior ofthe band C', thus forming a. perfectfjoint. When solder overflows at the top of the band C' it is 'conclusive evidence that the joint is well iilled, and hence no great cere or watchfulness on the part of the-workman isnecessary.A

The ring D and theinanner of using it form' opart of my present invention,but may be made the 'subjectA of another application for Letters Patent.

Although my invention is only illustrated and described in connectionvwith a boiler, it

Wha'tI claim-as my invention, and desire 25 I The within-described method of joining the sections of tubular boilers or vessels, the seme consisting in contracting the open Aend of one section, thenpl'acing around the exterior of 3o 'said contractedv end a. solid ring of solder, then inserting this end of the inner section into outer section, and nally heating the outer section to melt the solder and cause it t'o pass between the two sections, all as herein set 35 forth.

LE ROY S.' WHITE.

Witnesses:

G. H. CLOWEs,

FRANK PAR'rREE. 

